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    • 1. 发明申请
    • OPTICAL OBJECT POSITIONING APPARATUS AND POSITIONING METHOD THEREOF
    • 光学对象定位装置及其定位方法
    • US20160224190A1
    • 2016-08-04
    • US14831885
    • 2015-08-21
    • Chi-Tang HsiehYu-Jie SuYu-Cheng ChangZong QinYi-Pai Huang
    • Chi-Tang HsiehYu-Jie SuYu-Cheng ChangZong QinYi-Pai Huang
    • G06F3/042G06F3/041
    • G06F3/0304G06F3/0346G06F3/0425
    • An optical object positioning apparatus including an optical element, a light sensor and a processing unit and a positioning method thereof are provided. The optical element includes a first surface and a second surface opposite to each other and perpendicular to a first axis, and has at least two light-passing regions. Light beams from an object to be positioned pass through the light-passing regions from the first surface to the second surface. The light sensor and the optical element are spaced by a predetermined distance on a direction of the first axis. The light sensor senses the light beams from the light-passing regions to generate at least two light-sensing signals. A distance between the object and the optical element is positively correlated to the predetermined distance. The processing unit receives the light-sensing signals and positions the object according to the light-sensing signals and the predetermined distance.
    • 提供一种包括光学元件,光传感器和处理单元及其定位方法的光学对象定位设备。 光学元件包括彼此相对且垂直于第一轴线的第一表面和第二表面,并且具有至少两个光通过区域。 来自待定位物体的光束从第一表面到第二表面通过光通过区域。 光传感器和光学元件在第一轴线的方向上间隔预定距离。 光传感器感测来自光通过区域的光束以产生至少两个光感测信号。 物体与光学元件之间的距离与预定距离正相关。 处理单元接收光感测信号,并根据光检测信号和预定距离对物体进行定位。
    • 9. 发明授权
    • High efficiency single-inductor dual-control loop power converter
    • 高效率单电感双控制回路电源转换器
    • US07400118B1
    • 2008-07-15
    • US11756753
    • 2007-06-01
    • Zhiye ZhangYu-Cheng Chang
    • Zhiye ZhangYu-Cheng Chang
    • G05F1/00
    • H02M3/1588H02M2001/0032Y02B70/1466Y02B70/16
    • A high efficiency single-inductor dual-control loop power converter (SIDL) is proposed for converting unregulated DC input into regulated DC output to a power load. The SIDL includes: an energy storage loop having: a power inductor, a power capacitor and a power diode. A PWM switching power regulating loop for converting the unregulated DC input into the regulated DC output. a power-efficiency maximizing loop in parallel connection with the power diode. The power-efficiency maximizing loop includes: a power shunt transistor in parallel connection with the power diode and a real-time control loop adjusting, in response to a freewheeling current through the power diode, conductance of the power shunt transistor in a manner that a higher freewheeling current results in a higher conductance of the power shunt transistor.
    • 提出了一种高效率单电感双控制回路功率转换器(SIDL),用于将未调节的直流输入转换为稳压直流输出至电源负载。 SIDL包括:能量存储回路,其具有:功率电感器,功率电容器和功率二极管。 PWM开关功率调节回路,用于将未调节的直流输入转换为稳压直流输出。 与功率二极管并联连接的功率效率最大化环路。 功率效率最大化环路包括:与功率二极管并联连接的功率并联晶体管和实时控制环路,响应于通过功率二极管的续流电流调节功率并联晶体管的电导,其方式为 更高的续流电流导致功率并联晶体管的较高电导。